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Rare Metals 2011年第2期30卷 170-174页

作者： liU Baoting ZHOU Yang ZHENG Hongfang li mana GUO Zhe HAO Qingxun PENG Yingcai College of Physics Science and Technology Hebei University Baoding 071002 China Baoding University Baoding 071000 China College of Electronic and Information Engineering Hebei University Baoding 071002 China

Zinc oxide （ZnO） thin films were deposited on sapphire （0001） substrates at room temperature by radiofrequency （RF） magnetron sputtering at oxygen gas contents of 0%, 25%, 50% and 75%, respectively. The influence of oxygen gas content on the structural and optical properties of ZnO thin films was studied by a surface profile measuring system, X-ray diffraction analysis, atomic force microscopy, and UV spectro- photometry. It is found that the size of ZnO crystalline grains increases first and then decreases with the increase of oxygen gas content, and the maximum grain size locates at the 25% oxygen gas content. The crystalline quality and average optical transmittance （〉90%） in the visi- ble-light region of the ZnO film prepared at an oxygen gas content of 25% are better than those of ZnO films at the other contents. The obtained results can be attributed to the resputtefing by energetic oxygen anions in the growing process.

关键词： thin films zinc oxide magnetron sputtering oxygen structural properties optical properties

Annual advances of traditional medicine toxicity in 2018

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Traditional Medicine Research 2019年第3期4卷 111-117页

作者： Shu-li mana Gen-Bei Wang Chang-Xiao liue Wen-Yuan Gao State Key Laboratory of Food Nutrition and Safety Key Laboratory of Industrial Microbiology Ministry of Education Tianjin Key Laboratory of Industry Microbiology China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry College of Biotechnology Tianjin University of Science & Technology Tianjin 300457 China Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency School of Pharmaceutical Science and Technology Tianjin University Tianjin 300072 China Tasly Academy Tasly Holding Group Co. Ltd. No. 2 Pujihe East Road Tasly TCM Garden Beichen District Tianjin 300410 China State Key Laboratory of Core Technology in Innovative Chinese Medicine Tasly Holding Group Co. Ltd. No. 2 Pujihe East Road Tasly TCM Garden Beichen District Tianjin 300410 China The State Key Laboratories of Pharmacodynamics and Pharmacokinetics Tianjin 300193 China

There were many researches concerning toxicology of traditional medicine (TM) and active natural products during the past 12 months. This annual toxicology review summarized different analysis methods of toxicology research, common evaluated models, toxic target organs, toxic mechanisms, and popular research issues and herbs in 2018. The emphasis was on hepatorenal toxicity induced by TM through cell apoptosis, metabolic disorder, oxidative stress, inflammatory damage, liver and renal fibrosis and even inducing carcinogenesis. Meanwhile, traditional herbs were listed in this review. Taken together, the herbs mentioned in this paper should be used with caution. Combination of TM, processing drugs, quality control and dose control can be used in the prevention of TM toxicology in the future.

关键词： Traditional medicine Natural product Herb Toxicity Toxic target organs Risk assessment Safety evaluation

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永磁无刷直流电机漏电故障分析及诊断

华中科技大学学报（自然科学版） 2018年第2期46卷 118-122页

作者：李仲兴王满薛红涛江洪江苏大学汽车与交通工程学院江苏镇江212013 江苏大学机械工程学院江苏镇江212013

针对用永磁无刷直流电机电流信号对其漏电故障进行诊断易受汽车电池系统干扰的问题,提出一种对其转速信号进行故障特征提取的方法——阶次自分离方法.该方法以转速信号为分析对象,借鉴传统阶次分析法对变速信号的处理方式,从输出转速信... 详细信息

针对用永磁无刷直流电机电流信号对其漏电故障进行诊断易受汽车电池系统干扰的问题,提出一种对其转速信号进行故障特征提取的方法——阶次自分离方法.该方法以转速信号为分析对象,借鉴传统阶次分析法对变速信号的处理方式,从输出转速信号中分离出转速波动成分,对转速波动成分进行角域重采样,基于转速波动成分的阶次分析,提取由故障状态而引起转速非正常波动的阶次特征.基于永磁无刷直流电机相间漏电故障分析得知漏电故障会使电机产生转速故障信号,通过电机Matlab/Simulink仿真和漏电故障试验,分析不同漏电程度下电机输出转速信号的阶次特征,可以有效地识别电机漏电故障状态.

关键词：永磁无刷直流电机漏电故障阶次自分离转速故障信号阶次自分离方法

Hybrid structure of iron single atoms and metallic titanium for photothermal ethanol steam reforming

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Science China Chemistry 2024年第3期67卷 848-854页

作者： Dachao Yuan Guanda Han Zhixuan Wang Jianguo Zhao Kailuan li Pengfei Wang Jianjun Hao Yaguang li Jinhua Ye College of Mechanical and Electrical Engineering Technology Innovation Center of Intelligent Agricultural EquipmentHebei Agricultural UniversityBaoding 071001China Research Center for Solar Driven Carbon Neutrality The College of Physics Science and TechnologyInstitute of Life Science and Green DevelopmentHebei UniversityBaoding 071002China International Center for Materials Nanoarchitectonics(WPI-mana) National Institute for Materials Science(NIMS)1-1 NamikiTsukubaIbaraki 305-0044Japan Graduate School of Chemical Science and Engineering Hokkaido UniversitySapporo 060-0814Japan

Photothermal ethanol steam reforming(ESR) is currently limited by low intrinsic activity and strong solar energy ***,we synthesized Fe single atoms supported on CeO_(2)(SA Fe-CeO_(2)) to exhibit excellent low-temperature ESR activity with a hydrogen production rate of 512 mmol g^(-1)h^(-1) at 350℃,becuase of the high oxidation state of Fe single atoms to weaken the reaction barrier of ethanol ***,a heterostructure of SA Fe-CeO_(2) and Ti foil could eliminate 66% of infrared radiation via the size effect,thus achieving a 3.5 sun-driven temperature of 347℃.Consequently,the heterostructure of SA Fe-CeO_(2) and Ti foil shows a hydrogen generation rate of 984 mmol g^(-1)h^(-1) of ESR and 11.31% of solar-to-hydrogen energy conversion efficiency,which outperforms other photothermal ethanol-hydrogen production *** study provides a new path for designing active catalytic sites and trapping light energy of photothermal catalysts.

关键词： photothermal catalysis single atoms heterostructure ethanol steam reforming iron

Superstructured α-Fe2O3 nanorods as novel binder-free anodes for high-performing fiber-shaped Ni/Fe battery

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Science Bulletin 2020年第10期65卷 812-819,M0003,M0004页

作者： Chenglong liu Qiulong li Jingwen Cao Qichong Zhang Ping mana Zhenyu Zhou Chaowei li Yagang Yao School of Nano-Tech and Nano-Bionics University of Science and Technology of ChinaHefei 230026China Division of Advanced Nanomaterials Key Laboratory of Nanodevices and ApplicationsJoint Key Laboratory of Functional Nanomaterials and DevicesCAS Center for Excellence in NanoscienceSuzhou Institute of Nanotech and NanobionicsChinese Academy of SciencesSuzhou 215123China National Laboratory of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional Materials and Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China Division of Nanomaterials and Jiangxi Key Laboratory of Carbonene Materials Suzhou Institute of Nano-Tech and Nano-BionicsNanchangChinese Academy of SciencesNanchang 330200China Senior 1 Class 15 Suzhou High School of Jiangsu ProvinceSuzhou 215123China

Fiber-shaped energy storage devices are indispensable parts of wearable and portable *** rechargeable Ni/Fe battery is a very appropriate energy storage device due to their good safety without organic electrolytes, high ionic conductivity, and low cost. Unfortunately, the low energy density,poor power density and cycling performance hinder its further practical applications. In this study, in order to obtain high performance negative iron-based material, we first synthesized a-iron oxide(α-Fe2O3) nanorods(NRs) with superstructures on the surface of highly conductive carbon nanotube fibers(CNTFs), then electrically conductive polypyrrole(PPy) was coated to enhance the electron, ion diffusion and cycle stability. The as-prepared α-Fe2O3@PPy NRs/CNTF electrode shows a high specific capacity of 0.62 Ah cm-3 at the current density of 1 A cm-3. Furthermore, the Ni/Fe battery that was assembled by the above negative electrode shows a maximum volumetric energy density of 15.47 mWh cm-3 with228.2 mW cm-3 at a current density of 1 A cm-3. The cycling durability and mechanical flexibility of the Ni/Fe battery were tested, which show good prospect for practical application. In summary, these merits make it possible for our Ni/Fe battery to have practical applications in next generation flexible energy storage devices.

关键词： a-Fe2O3 nanorods Superstructures PPy coating Ni/Fe battery Wearable electronics

The effect of intraoperative goal-directed fluid therapy in patients under anesthesia for gastrointestinal surgery

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World Journal of Gastrointestinal Surgery 2024年第9期16卷 2815-2822页

作者： Jun Zhang Xiao-Wen li Bing-Feng Xie Department of Anesthesiology The Second Hospital of LongyanLongyan 364000Fujian ProvinceChina Department of Gastrointestinal Surgery Longyan First HospitalLongyan 364000Fujian ProvinceChina

BACKGROUND Intraoperative fluid management is an important aspect of anesthesia mana-gement in gastrointestinal *** goal-directed fluid therapy(GDFT)is a method for optimizing a patient's physiological state by monitoring and regulating fluid input in *** To evaluate the efficacy of intraoperative GDFT in patients under anesthesia for gastrointestinal *** This study utilized a retrospective comparative study design and included 60 patients who underwent gastrointestinal surgery at a *** experimental group(GDFT group)and the control group,each comprising 30 patients,received intraoperative GDFT and traditional fluid management strategies,*** effect of GDFT was evaluated by comparing postoperative recovery,com-plication rates,hospitalization time,and other indicators between the two patient *** Intraoperative blood loss in the experimental and control groups was 296.64±46.71 mL and 470.05±73.26 mL(Pliver,pancreas,spleen,and other internal abdominal organs[2,3].With advancements in surgical technology and anesthesia methods,the safety and success rates of surgery have significantly improved[4,5].However,intraop-erative fluid management remains a critical challenge[6].Traditional fluid management strategies often rely on experience and basic physiological parameters,which may lead to excessive or insufficient fluid input,thereby affecting p

关键词： Intraoperative goal-directed fluid therapy Gastrointestinal surgery Anesthesia management Postoperative recovery Complications Length of stay

A new class of crystalline X-ray induced photochromic materials assembled from anion-directed folding of a flexible cation

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Chinese Chemical Letters 2024年第8期35卷 554-557页

作者： Hong-Jin liao Zhu Zhuo Qing li Yoshihito Shiota Jonathan P.Hill Katsuhiko Ariga Zi-Xiu Lu Lu-Yao liu Zi-Ang Nan Wei Wang You-Gui Huang CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350007China Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth MaterialsHaixi InstitutesChinese Academy of SciencesXiamen 361021China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108China Institute for Materials Chemistry and Engineering Kyushu UniversityFukuoka 819-0395Japan World Premier International(WPI)Center for Materials Nanoarchitectonics(mana) National Institute for Materials Science(NIMS)Ibaraki 305-0044Japan

Electron-deficient viologens are widely used as ligands or structure-directing agents(SDAs)to synthesize crystalline X-ray induced photochromic ***,a new rational strategy of anion-directed fold-ing a flexible cation(H_(2)imb)^(2+)((H_(2)imb)^(2+)=di-protonated 2,3-bis(imidazolin-2-yl)-2,3-dimethylbutane)has been ***-donating Cl−and(ZnCl4)2−are used to direct folding a flexible electron-deficient(H_(2)imb)^(2+)*** complexes(H_(2)imb)(NO_(3))2(1),(H_(2)imb)Cl2·H_(2)O(2),and(H_(2)imb)ZnCl4(3)have been synthesized in which(H_(2)imb)^(2+)crystallize in an anti-conformation,88.8°-gauche,and 51.8°-gauche,*** contrary to X-ray silent complex 1,X-ray induced photochromism has been achieved in both complex 2 and *** intermolecular charge-transfer mechanism has been elucidated and the anion directed folding of(H_(2)imb)^(2+)has been validated to be critical to yield colored long-lived charge-separated states.

关键词： Supramolecular Photochromic X-ray induced Anion-directed folding Electron-deficient viologens

基于Meta-SEM的建筑工人安全行为影响机制研究

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安全与环境学报 2024年第2期24卷 626-635页

作者：李国良章密李玉龙昆明理工大学建筑工程学院昆明650500 中央财经大学管理科学与工程学院北京100081

为梳理建筑工人安全行为的前因变量并分析其影响机制,基于从众动机和计划行为理论,构建了建筑工人安全行为影响机制理论模型,运用元分析-结构方程模型(Meta-Structural Equation Modeling,Meta-SEM)法对国内外64项实证研究中的128个独... 详细信息

为梳理建筑工人安全行为的前因变量并分析其影响机制,基于从众动机和计划行为理论,构建了建筑工人安全行为影响机制理论模型,运用元分析-结构方程模型(Meta-Structural Equation Modeling,Meta-SEM)法对国内外64项实证研究中的128个独立样本进行系统分析,以明确各前因变量与建筑工人安全行为的相互作用关系并探讨企业规模的调节作用。结果表明:在个体层面,安全意识、安全态度、安全动机与建筑工人安全行为的相关系数分别为0.663、0.513、0.509;在组织管理层面,安全氛围与建筑工人安全行为的相关系数为0.678;安全意识、安全态度、安全动机是安全氛围与建筑工人安全行为之间的中介变量;企业规模对安全意识、安全动机、安全氛围与建筑工人安全行为的关系间存在显著调节作用,其中,中小型企业的影响更显著。研究结论可为后续建筑工人安全行为研究提供一定的理论基础,也为建筑业管理者提供了管理依据。

关键词：安全社会科学安全行为建筑工人元分析-结构方程模型(Meta-SEM)分析前因变量影响机制

高管外部薪酬差距的激励扭曲效应——以企业违规为例的研究

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经济管理 2024年第4期46卷 113-131页

作者：朱沛华李方方李军林北京工业大学经济与管理学院北京100124 上海师范大学商学院上海200234 中国人民大学经济学院北京100872

薪酬激励是解释现代组织决策的重要因素,薪酬的分化将导致企业管理层决策的一系列调整。本文基于锦标赛理论、社会比较理论论证了管理层薪酬攀比下的激励扭曲效应,并以沪深A股的民营上市公司样本为例,检验了企业间的外部薪酬差距如何影... 详细信息

薪酬激励是解释现代组织决策的重要因素,薪酬的分化将导致企业管理层决策的一系列调整。本文基于锦标赛理论、社会比较理论论证了管理层薪酬攀比下的激励扭曲效应,并以沪深A股的民营上市公司样本为例,检验了企业间的外部薪酬差距如何影响企业的违规决策行为。结果表明:总体上,外部薪酬差距显著加剧了企业违规的可能性,即存在激励的扭曲效应;机制上,薪酬差距将导致企业出现更多的在职消费、掏空行为、关联交易以及盈余管理,表明激励扭曲下企业管理层可能通过其他渠道补偿自身的回报,以及采取不正当竞争方式提高企业业绩;对策上,内部控制质量、管理层持股因素均发挥着显著的调节效应,能够改善薪酬差距的激励扭曲。上述研究结论有助于理解企业管理层在外部薪酬差距驱动下的违规决策机制,为完善上市公司的外部监管与治理企业机会主义行为提供有益的政策启示。

关键词：外部薪酬差距违规激励扭曲内部控制

北京市城区肺癌高危人群低剂量螺旋CT筛查依从性及其影响因素分析

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中国肿瘤 2024年第6期33卷 486-491页

作者：李晴雨杨雷张希刘硕李慧超李浩鑫曹莉莉季加孚王宁北京大学肿瘤医院暨北京市肿瘤防治研究所北京市肿瘤防治研究办公室恶性肿瘤发病机制及转化研究教育部重点实验室北京100142 北京大学第一医院北京100034 北京大学肿瘤医院暨北京市肿瘤防治研究所胃肠肿瘤中心一病区消化系肿瘤整合防治全国重点实验室恶性肿瘤转化研究北京市重点实验室北京100142

[目的]分析2014-2019年北京市城区肺癌高危人群低剂量螺旋CT(LDCT)筛查依从性及其影响因素。[方法]采用整群抽样方法,选取来自北京市东城、西城、朝阳、海淀、丰台和石景山共6个城区癌症早诊早治项目点的40~69岁北京市户籍居民进行问卷... 详细信息

[目的]分析2014-2019年北京市城区肺癌高危人群低剂量螺旋CT(LDCT)筛查依从性及其影响因素。[方法]采用整群抽样方法,选取来自北京市东城、西城、朝阳、海淀、丰台和石景山共6个城区癌症早诊早治项目点的40~69岁北京市户籍居民进行问卷调查以评估癌症风险,对评估出的肺癌高危人群开展LDCT筛查。采用χ2检验比较不同特征人群的LDCT筛查参与率(依从性)差异,采用多因素非条件Logistic回归模型分析其影响因素。[结果]共88044名北京市城区居民参与调查,其中20371人被评估为肺癌高危人群,高危率为23.1%。有10645人接受了LDCT筛查,总体参与率为52.3%。多因素Logistic回归分析显示,女性、50岁及以上年龄组、大学/大专及以上学历、存在有害职业暴露、家庭做饭时油烟较多、有被动吸烟史、自报存在精神创伤或压抑的人群LDCT筛查依从性更好,目前正在吸烟的人群依从性较差。[结论]北京市城区肺癌高危人群的LDCT筛查依从性仍有提升空间。未来应针对不同特征人群实施更加精准的健康教育和管理策略,进一步提高肺癌高危人群的LDCT筛查依从性。

关键词：肺癌筛查低剂量螺旋CT 依从性影响因素北京